The Correction of X-Probe Results for Transverse Contamination

Abstract

This note discusses the interpretation of X-probe measurements obtained in the presence of significant velocities transverse to the plane of the wires. To measure the three mean velocity components, the probe was used in two planes which gave a redundant estimate of the component along the probe axis. A correction of the measured mean velocities for transverse contamination is described and justified. It was found that the corrections reduced the mean component along the probe’s axis by up to 20 percent, while the components orthogonal to that axis were hardly altered.